Cross slides and control mechanism therefor



Feb. 22, 1949. M. G. HIMCFF ETAL 2,462,498

CROSS SLIDES AND CONTROL MECHANISM THEREFOR Filed July 16, 1943 3 Sheets-Sheet 1 |NVENTOR5 RIS G. HIM OFF SECONDO LCASELLA Feb. 22, 1949, 1

Filed July 16, 1943 M. e. HlMOFF ET AL CROSS SLIDES AND CONTROL MECHANISM THEREFOR a Sh ets-Sheet 2 INVENTOR5 MORRIS G.Hl/V\OFF SECONDO L. CASELLA Feb. 22, 1949. M. G. HIMOFF ET AL CROSS SLIDES AND CONTROL MECHANISM THEREFOR 3 Sheets-Sheet 3 Filed July 16, 1943 m INVENTORS MORRIS G.HI/V\OFF SECONDO L. CASELLA JQATTQRNEY Patented Feb. 22, 1949 UNITED STATES cRoss'sLmEs 2,462,492; L o AND ooNTRoL MECHANISM THEREFORL Morris G. flirnoif and' Secondo EL. Gasella, New York, N. Y., assignors to Morey Machinery 00.,

Application 11137, w n a This invention relates to, cross slides and control mechanism therefon; It is particularly di rected to a cross slide of alathe, having both power and hand feed for its slide and carriage An object of this invention is to provide in -a cross slide of the character described, highlyimk proved an a meet t se e t v n; t power feed for either the carriage or the slide, and

including levers that may be easily actuated by the operator while the power feed is in operaiion t s 3, 699%! e Another object of this invention is to provide a highly improved cross' slide operating mechanism including a stop roll tothrow out the power feed for the longitudinal drive for the carriage,

and means on the slide to throw outthe power feed for the transverse drive of the slide, and additional highly simplified 1 and easily operated manual means to selectively stop the power drives for the carriage orthe slide. 1 r

Another object of this invention is to provide a crossslide of the character dscribed including, a single power feed forthe; carriage and slide,

means to'vary the speed of said power drive, means-to reverse the direction of said'drive, man: ual means to selectively move the carriage or the slide, means to automatically stop the movement of the carriage or slide, and manual means to stop the movement of the carriage orslide. H Yet a further object of this invention -is to provide a compact, rugged and durable cross slide of the character described which shall be relatively inexpensive to manufacture, smooth and positive in operation, easy to assemble and operate, and which shall yet be practical and efficient to a high degree in use.

Other objects of this invention will in part be obvious and in part hereinafter pointed out.

The invention accordingly consists in the features of construction, combinations of elements, and arrangement of parts which will be exemplifled in the construction hereinafter described, and of which the scope of application will be indicated in the following claims.

In the accompanying drawing, in which is shown various possible illustrative embodiments of this invention,

Fig. 1 is a side elevational view of a cross slide embodying the invention on the bed of a lathe;

Fig. 2 is a cross-sectional view takenon, line 2-2; ofv Fig. 1;

Fig.3 is a top plan view of the crossslide carriage with parts broken away and incross-section; a

"im ut t o w 3,,Se t at 1 49 .926

Fig. 4 is a cross-sectional vi 4+4 of Fig. 3; and

Fig. is a cross-sectional 5-5ofFig. 3. V Referring nowin detail to the drawi g h designates the bed of a lathe such asa turr e lathe, and H designates'a crossj -slide embodin the invention. The cross slide 4 comprises. saddle 2; slidably mounted on the ways |3 ofthe bed G for longitudinal movement relativethereto, "a slide l4 slidably mounted on"thesaddle Rigor; transverse movement relative to the saddleend bed," and a carriage I5 fixed to the saddle and movable therewith longitudinally of the bed, 15, The saddle iz has parallel grooves l6 to receive the ways and fixed to the underside there-1: of are gibs engaging the underside of the waystoserve as guides for the saddle. d ,1 saddl f th rmq e rmedw are fl-t d m in wh h i iou eela horizontal shaft 29, disposed beneath andpar l l t e de H- Kere io ihesh tand posed'between the bearingsl g andlii isapinio 2|. Theshaft 2|] has-a screwthreade d portipn W e 'th ea ed ell a em nt,wi hfi l te lla yw ea edqm pf he sl de it ne end. the ef 2,0 i aras leiiiwherebr t rotate, the

Screw and n e l de; tren vers lynoi the? W en: f line. i jew deaf-Blithe saddle; manually; l l y J 39 5 The carriage |5 comprises a feed box 3q fixed' to the underside of the saddle and dispose i front of the bed l0. At the front of the fee box is a feed box cover 3|. The feed P93 fill has a bottom wall 32, a rear wall 33, sidewalls 34am 35, and is open at the front, the front or; the feed box being closed bythe cover 3|. Thei hgx 3|] slidably engages a guide |6a on-the bed Extending horizontally through aligned bear 4 ings in the side walls 34 and 35 of the feed text is a power shaft 3.] which obtains power in any, suitable manner, as for example fromfth'e hea; stock of the lathe. Onshaftji'! and withinth feed box is a pinion 38.- Within the ,feed 'j box'; is an upwardly extending vertical wall 39 dispose fl between the side walls. Mounted on walls 33a 35 'on suitable bearings carried by said wallsgis a horizontal shaft 4|. On shaft 4| is ammonia meshing with the pinion 38. ii Slidably mounted on shaft 4| are two pair of double gears 43 and 44 of varying diameters,- shift able selectively on the shaft 4| by usual gear shift mechanism. Said mechanism may'include a gear shift lever 45 pivoted on the front wall.,3| end 55 havinga iorwardly extending handle '46; 'The 3 lever 45 may include an arm 41 adapted to selectively engage shifting blocks 48 and 49 to which are fixed parallel shafts 45a, 49a, Any suitable means such as locking balls, well known in the art, may be provided to prevent shifting of either shaft 480.01 490.. when the other is shifted from normal position. One block carries .a fork 50 adapted to engage one of the double gearsand the other block carries a fork adapted to engage the other of the double gears. The double gears may thus be shifted selectively in either direction.

J ournalled in the feed box is another horizontal shaft 53 carying a cluster gear 54 comprising four' gears of various sizes adapted to. be selectively engaged by the gears 43 or 44 whereby to vary the speed of shaft 53. V

Keyed to shaft 53 is a clutch member 55 formed with an annular groove 55. On opposite sides of the clutch member 55 are radial clutch teeth 56a. Rotatably mounted on shaft 53 and disposed on opposite sides of the clutch 55 are beveled gears 58' and 59 selectively engageable by the clutch 55.

Journalled on the front Wall 3| is a horizontal, shaft 60 extending through said wall. Fixed to the front end of the shaft 60 is a hand lever 5|.

Fixed to'the inner end of said shaft 60 is a crank arm 62carryin a fork 63 engageable in the groove 56 of clutch 55. Thus as lever BI is rotated in one direction or another, the clutch 55 is selectively engaged with either one or the other of the gears 58, 55 or is moved to neutral position.

Journalled within the feed boxin any suitable manner, is a vertical shaft 65 carrying a worm 66 and a helical gear 61. The shaft 65 also carries a bevel gear 65a meshin with the bevel gears 58, 59.

There is furthermore journalled within said feed box a fixed horizontal shaft running from front to rear, also a second horizontal shaft 1| parallel to shaft 10 and likewise running from front to rear. Shafts 10, 1| are on opposite sides of shaft 55. Fixed to the rear end of shaft 11 is a pinion 12 meshing with the teethof a rack 13 fixed to the bed I0. Thus when shaft 1| rotates, the carriage will move to the right or toy the left depending upon the direction of rotation.

Retatably mounted on shaft 1 I is a worm gear meshing with the worm 66. The worm gear. 15 is formed with an internal conical clutch surface 11. Keyed to the shaft 1| is a, sleeve 18 carrying a clutch cone 19 adapted to engagejsaid conical surface 11. 7

It will now be understood thatwhen sleeve 18 is pressed forwardly the clutch cones will engage and the shaft 1I will be driven through worm 'gear 15 and memberlfl. However, when pressure is released from member 18 the drive for shaft 1I will cease, as the clutch will loosen itself when there is no pressure thereon.

Journalled on shaft 10 is a gear .80 meshing with the gear 51. The gear 80 is formed with an internal conical clutch surface BI. Journalled on shaft 10 is a clutch member 82 having an external clutch cone 83 adapted to engage the internal cone 3|. When member 82 is pressed rearwardly toward the cone clutch 8! it will be rotated from the shaft 55. When pressure on member 82 is relaxed the drive for said member will be released. Member 82 is formed with'a hub 85 carrying a ear 81 meshing with pinion 2| on screw shaft 20.

Fixed to shaft 10 is a collar lilo/contacting the hub or spiral gear 35 so as to prevent cone 8I from moving relative to the shaft and thereby prevent engagement of the cone clutches BI, 83 except when member 82 is pressed rearwardly.

It will now be understood that shaft 20 may be driven by power in either direction and with a variety of speeds, power being obtained through the power shaft 31. Thedrive is from shaft 31, pinion 38,, gear 42,. shift gears 43. or 44, cluster gear 54, shaft 53, bevel gears 58 or 59, bevel gear 55a, shaft 65, gears 51 and 80, clutch BI, 83, gear 81, and pinion 2|.

It will be observed that the clutch lever may be moved to neutral position when it is desired to stop the drive for either the carriage or slide, and that the direction of rotation may be changed by shifting the clutch lever BI, and also that the speed may be varied by operating the gear shift lever 46.

Shaft 20 may be rotated manually as stated above, by turning the handle 35.

The carriage may also'be moved longitudinally manually. To this end there is journalled in the front wall, SI a horizontal shaft 90' carrying a hand wheel SI. On the inner end of shaft 90 is a gear 92 meshing with a gear 93 on sleeve 18.

Releasable means is provided to press member 18 rearwardly to engage the cone clutch 11, 19. To this end there is journalled on shaft H a sleeve 95 carrying a series of cam teeth 96, Fixed to the sleeve 95 is a lever 91 for the purpose hereinafter appearing.

Wall 3i is formed with a fixed sleeve or huo portion 99 into which projects the forward end of shaft 1|. Screwed to the outer end of sleeve 91 H is a cap I00 adapted to be fixed by a set screw IN.

Slidably, but non-rotatably mounted within sleeve 99 is a cam I03 having cam teeth I04 complementary to the cam teeth '95. Cam I03 is retained against rotation by set screw I05.

It will be observed that the lever 91 is formed with an opening through which the sleeve When lever 91 drops, the clearance between the teeth 55 and I04 causes the thrust on member 18 to be relaxed; sufficiently to disengage the clutch members 11, 1'9. Said clutch cones are at such an angle so as to be self-releasing when there is no pressure thereon. 1

Releasable means is provided to retain lever 91 in raised or in clutching position. To this end said lever'arm is formed at its outer end with an opening H0. Extending through the opening is a cam sleeve ill fixed" to the lever by a taper pin or in any other suitable manner. Sleeve III has cam teeth H2 at its forward end. It is furthermore formed at its forward end with a socket H3 and with a through opening II5 of reduced diameter. Extending through the opening H5 is a stem I I6 carrying a head H1 at its forward end. Interposed between the head H1 and the inside of the socket, and disposedzabout the, stem, is a compression spring I I8 urging the head H1 forward. On-thefront end of stem H5 is a collar I20. Rotatably-mountedonthe stem and held thereon by the collar I2!) is a cam sleeve I22 having cam teeth. I23 complementary to the V teeth'I-I'2 of cam sleeve H I.

Rotatably mounted" on sleeve III" and receiving the sleeve I22 is a hand lever arm I25. It

will be observed that the sleeves III and I22 are of substantially the same diameter. Lever arm I25 has a through opening to receive said sleeves. At the outer end of lever arm I25 is a handle I26.

Fixed to the front wall 3| is a button I28 formed with a central opening receiving a projection on the head Ill to retain the lever 91 in raised or clutch engaging position. Upon depresse ing the handle I26, lever arm I25 causes rotation of sleeve I22 and due to the engagement of the cam teeth II2, I23, sleeve I22, together with the lever arm I25 and stem III; are moved forwardly, compressing the spring IIB but disengaging the head II! from the button I205} As soon 'as disengagement is effected lever 91 will drop bygravity to release the thrust on the clutch coher'l'l, 19 and thereby stop the power driveforgthe, shaft. II;

In this manner the power drive for the carriage,

longitudinally of the bed, is stopped manuallyrby merely depressing the lever I25.

I A usual stop roll I30 such as described in"co-v pending application, Serial No: 485,967, filed May 7, 194'3,-now, Patent Number 2,361,453 for Stop rolls, by applic'ant SecondoL. Casella, may be pro= vided to disengage the lever 91- automatically when the carriage reaches predetermined, selected positions in its movementto the left, looking at Fig. 3 of the drawing.""

The releasing of the lever is effected when a stop strikes one of'the screws I3I causing movement of a member I32 mounted on the feed box, to the right. Member- I 32 isformedwith a cammed surface I33 engaging the cam I34 on a plunger I35. Said plunger extends through the-central opening of the button I28 to push the projection I I I out of said opening wherebyto permit the lever-91 to drop. I

Means is also provided to manually disengage the cone clutches III, 83 so astO manually stop the power drive for the slide transversely of the saddle. To" this end wall 3I- is formed with a sleeve orhub 99a concentric with-the forward end ofthe shaft 10. Screwed to the forward-end of shaft 10 is anut I40. On the shaft 10- isacam sleeve I4I contacting the nut I40 and held against rotation by means of a set screw I42 on sleeve 99a. Cam sleeve MI is formed with cam teeth I44.

Rotatably mounted on shaft 10 is a second cam sleeve I45 having cam teeth I46 complementary to the cam teeth I44. Mounted on sleeve I45 is a lever am having an opening receiving said sleeve and fixed thereto by a taper pin or in any other suitable manner.

Interposed between the lever 91a and hub 86 is a thrust bearing I50. When lever 91a is raised said lever will be moved forwardly due to engagement of teeth I46 with teeth I44 causing a thrust to be imposed, through the thrust bearing I50, on hub 86. Such a thrust causes cones 83, 8| to be engaged whereupon gear 61 is driven by power.

Means is provided to manually release the power drive to the gear 81. To this end there is mounted on the front wall 3| of the feed box, a second button I26a formed with a central opening and similar to button I26. Mounted on the lever 91a is a lever arm I25a similar to lever arm I25 and having means to engage the button I28a similar to that described previously, engaging button I28. Upon depressing the lever arm I25a, lever 91a is released and drops by gravity causing disengagement of the clutch cones BI, 03.

Means is provided to automatically disengage the lever 91a at predetermined points in the movement of the slide forwardly or rearwardly. To this end there is fixed to one side of theslide a pair of spaced adjustable stops I60. Slidably mounted within the feed box is a vertical pin I6l normally raised by a spring I62 and having a cammed surface I63 at its lower end. Slidably mounted in the feed box is a horizontal pin I65 having a'cammed surface IE6 at its rear end engageable with the cammed surface I63. When the stops I60 depress the pins I6l, horizontal pin I65 will be moved forwardly to disengage the lever 91a.

i It will now be understood that depression of the levers: I25',1-I25a:is,all that is necessary to release: the power drives for either the longitudinal or the cross feed, and it is not necessary to grasp :andpull the;.pins H6 to disengage them from the. buttons I28, I28a.

It "will further be understood that the cross slide can be moved either by power manually, longitudinally ,andiltransv'ersely of J the :bed :nand that "the'power drive may be stoppedeither automatically or manually, and that furthermore thexipower :drive for" the cross slide may be had inivarious 'selectedspeeds; z'I'he whole unit is carried inthe' onefeed box" and" is smooth and positive'in operationuandeasyto manipulate.

- It .will be noted furthermore that the power drive? for both the longitudinal, .aswell as cross feed is vderivedzafrom ithezisame shaft 65 which may be 'rotated' inl either direction through the clutch 55, and said shaft may be:furthermore rotated at variousrspeeds: so thatthe one speed changer controls thev speed'tof drive for both. the longitudinal and transverse drives;

It will thus be seen that Ithere istprovided a device in which the several objects: of this :invention?" are achieved, and-which, is'well adapted to meetJtheccQnditions 'of practical use;v -sL=As avarious iipossible': tiembodiments" might be made: of'rither-xaboveinvention, and as various changes .-:might be ilmadefin the embodiments above: setxforth', itiis tOIibe understood thatsall matter-herein setzforth-or shown in the accompanyingrdrawingris: tobezinterpreted as. illustrative and not in a limiting sense.

Having thus described our invention, we claim as new and desire to secure by Letters Patent:

1. In combination, a shaft, a member mounted thereon and provided with a clutch means, a second member on the shaft provided with clutch means adapted to engage the first clutch means, a lever on said shaft, means effective upon rotation of the lever in one direction of rotation to cause the clutch means of said members to be engaged and in an opposite direction of rotation to permit said clutch means to declutch, releasable means to retain the lever in clutching position, a lever arm rotatably mounted on the lever about an axis parallel to said shaft, and cam means effective upon movement of the lever arm in said opposite direction of rotation to disengage the retaining means.

, 2. In combination, a shaft, a gear rotatably mounted thereon, means to rotate said gear, said gear being provided with clutch means, a member keyed to the shaft and having clutch means engageable with the first clutch means, a cam member rotatably and slidably mounted on the shaft, a lever fixed to the cam and adapted to rotate the same, a second cam disposed about said shaft, means to fix the second cam against rotation, stop means engaging the second cam to prevent sliding movement thereof relative to the shaft, a thrust bearing interposed between 7 the ileverand thelmember keye'd to the shaft, whereby rotation ofithe lever in one :direction of rotation will cause :the first 'cam .to': engage the second cam andimpose fa thrust through the thrust bearing to press the clutch means :on the keyed member into engagement with the clutch means on the gear, and rotation'of said leverrin an opposite direction of: rotation will release said thrust, a cam at the outerend'of said lever,-a spring pressed plunger within said last camymeans adaptedito be engaged by the spring pressed plunger to retain said lever against rotation, a lever:arm rotatably mounted onithe' cam' atitheouterend.ofsaid lever, anda cam 'lever, means adapted to be engaged by the springepressed member to'retain the lever against rotationja lever armrotatably mounted on said lever about an axis parallelto the pivotal axis of said lever, a second cam fixed to the lever arm and engagin the first cam, said second cam having means to engage the spring-pressed member, whereby to retract and release the'same from'the retaining means, upon :rotating said lever arm relative to said lever, whereby to per mit rotation of 'said-lever. i 1

4. In combination, a lever rotatably mounted about'a fulcrum,,said'1ever being formed with an opening, a sleeve, within said opening and fixedto'the lever, a spring-pressed plunger slidably mounted'in said sleeve, "a lever arm rotatably mounted on said sleeve, a secondtsleeve fixed to said lever arm, said plunger :passing through said second sleeve, interenga'ging cam means on said first and second sleeves, and

means; on r the l plunger .tand engaging :the second sleeve whereby rotation of said =lever'arm will cause -the second sleeve ito be: retracted. '5. In combination, a IwalListop' means on said wall,fa' lever pivoted about an='axisi'perpendicular to said wall, means movable on' said lever in a directionrparallel' to the pivotal axis of said lever, and spaced from said pivotal axis, and engageable with said stop mean'stto retain-said lever against rotation, a lever. arm: rotatably mounted onl-saidllever about an axisiparallelto the pivotal axis ofl'saidilever, and means efiective upon rotation of: saidilever arm relativelto said leverto diseng'agei'said (retaining means from said stop means; whereby to permit rotation of said lever.

6: Inlcombinationj-a wall, stop means on said wall, :aileveripivoted to saidwall about an axis perpendicular tosaid wall, a spring pressed plunger'zonf said lever offset fromithe pivotal axis of said lever, the axis of isaidlplungerbein'g parallelito the pivotal axis'of saidrlever, and engagea'ble with-sai'd stop means to retain the lever against rotation, a lever arm pivotedto said lever about aniaxis of said plunger, and means effective .upon rotation of said T lever arm' relative to said leverito release thespring pressedplunger from said stop means 'whereby to permit rotation of the lever about its pivotal-axis.

1 :"MORRIS .G; HIMOFF.

SECONDO L. CASELLA.

IREFERENCES CITED The'following references are of record in the file of this patent: 

